CN209783995U - coke oven vertical flue waste gas sampling device - Google Patents
coke oven vertical flue waste gas sampling device Download PDFInfo
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- CN209783995U CN209783995U CN201822154159.5U CN201822154159U CN209783995U CN 209783995 U CN209783995 U CN 209783995U CN 201822154159 U CN201822154159 U CN 201822154159U CN 209783995 U CN209783995 U CN 209783995U
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Abstract
The utility model relates to a coke oven vertical flue waste gas sampling device, which comprises a sampling tube, a seat plate and a sampling interface, and is characterized in that the sampling tube is a hollow tube, and one end of the sampling tube is welded with the sampling interface; the base plate is welded on the sampling tube at a position which is L away from the other end of the sampling tube. When the portable gas analyzer is used, the cover plate of the observation hole seat is opened, the sampling tube is placed into the vertical fire channel of the coke oven, the seat plate is tightly attached to the observation hole seat, no gap is ensured, leakage is avoided, the sampling interface is externally connected with the silicone tube and is connected to the portable gas analyzer, waste gas in the vertical fire channel can be obtained on line for sampling analysis, and fire adjustment work is guided. The beneficial effects are as follows: the problem that the analysis result is influenced by inaccurate sampling of the waste gas of the vertical flue of the coke oven can be solved, and the device has the characteristics of simple structure, light weight, convenience in use, repeated use for many times, economy and practicability.
Description
Technical Field
The utility model relates to a sampling tool in the technical field of coke oven waste gas analysis, in particular to a coke oven vertical flue waste gas sampling device.
Background
In the production process of the coke oven, in order to achieve the highest thermal efficiency, namely, on the premise of ensuring the maturity of coke, the minimum amount of coal gas is used, the lowest coking heat consumption is required to be continuously adjusted, and the components of combustion waste gas in the vertical flue are an important reference basis in the adjustment work. However, the temperature in the vertical flue is high, so that the sampling is difficult. At present, a waste gas sample generally adopts a steel pipe or a stainless steel pipe to extend into a vertical flue of a coke oven for sampling, and has the following defects:
1) when the early sampling is carried out, a steel pipe with the length of about 0.5 meter is used, and the length of the steel pipe extending into the vertical flue is not enough, so that the obtained waste gas sample is not generated by combustion, and the analysis is meaningless;
2) Later, a seamless steel pipe or a heat-resistant stainless steel pipe with enough length is gradually used for sampling, but because the temperature in the vertical flue is very high, part of components in the waste gas react with the seamless steel pipe or the heat-resistant stainless steel pipe at high temperature, and therefore, the analysis data is inaccurate;
3) A gap is formed between the sampling steel pipe or the stainless steel pipe and the flame observation hole seat, and air leaks into the vertical flame path in the sampling process, so that the sampling accuracy is influenced;
4) Because the temperature in the vertical flame path is very high (above 1000 ℃), the sampling tube is generally disposable and is not economical.
SUMMERY OF THE UTILITY MODEL
in order to overcome the defects of the prior art, the technical problem solved by the utility model is to provide a coke oven founds flue waste gas sampling device, can solve the problem that the sampling of coke oven founds flue waste gas does not accurately influence the analysis result, and has the characteristics of simple structure, light quality, convenient to use, repeated use, economy and practicality many times.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
A coke oven vertical flue waste gas sampling device comprises a sampling tube, a seat plate and a sampling interface, and is characterized in that the sampling tube is a hollow tube, and one end of the sampling tube is welded with the sampling interface; the base plate is welded on the sampling tube at a position which is L away from the other end of the sampling tube.
The sampling tube is made of quartz glass, the inner diameter of the sampling tube is 10-12 mm, and the length L of the sampling tube is required to extend into the vertical flue to exceed the lower edge of the crossing hole by 100-150 mm.
The bedplate is the circular platelike structure of quartz glass material, and thickness is 5 ~ 8mm, and the outside diameter size matches with the observation hole lid, and the internal diameter matches with the outside diameter of sampling tube to be in the same place with sampling tube welded connection.
the sampling interface is a hollow tube structure made of quartz glass, the outer diameter of the sampling interface is 6-8 mm, the inner diameter of the sampling interface is 4-6 mm, and the length of the sampling interface is 45-55 mm.
compared with the prior art, the beneficial effects of the utility model are that:
1) the outer diameter of the quartz glass seat plate is the same as that of the observation hole cover, and the quartz glass seat plate can be tightly combined with the observation hole seat, so that air is effectively prevented from leaking into the vertical flame path in the measuring process, and the accuracy of a sampling result is ensured;
2) the quartz glass sampling tube has stable tube quality, does not react with any component in the waste gas at the high temperature of the vertical flame path, and can ensure the accuracy of the sampling result;
3) The quartz glass sampling tube extends into the vertical flue and exceeds the lower edge of the crossing hole, and then enters a waste gas flowing area, and the taken waste gas is generated by gas combustion, so that the sampling is accurate;
4) Has the characteristics of simple structure, light weight, convenient use, repeated use, economy and practicality.
Drawings
FIG. 1 is a schematic front view of the structure principle of the present invention;
fig. 2 is a schematic plan view of the structure principle of the present invention.
in the figure: 1-sampling tube 2-base plate 3-sampling interface
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings:
As shown in fig. 1 and fig. 2, the coke oven vertical flue waste gas sampling device of the present invention comprises a sampling tube 2, a base plate 1 and a sampling interface 3, wherein the sampling tube 2 is a hollow tube, and one end of the sampling tube is welded with the sampling interface 3; the base plate 1 is welded on the sampling tube 2 at a position which is spaced from the other end of the sampling tube 2 by a distance L, wherein the length of L can be determined according to different furnace types.
The sampling tube 2 is made of quartz glass, the inner diameter is 10-12 mm, the length L of the sampling tube is required to extend into the vertical flue and exceed the lower edge of the crossing hole by 100-150 mm, the sampling tube is ensured to enter a waste gas flowing area, the taken waste gas is generated by gas combustion, and sampling accuracy is ensured.
the base plate 1 is of a circular plate-shaped structure made of quartz glass, the thickness of the base plate is 5-8 mm, the size of the outer diameter of the base plate is matched with the observation hole cover, the inner diameter of the base plate is matched with the outer diameter of the sampling tube, the base plate is connected with the sampling tube in a welding mode, air leakage is avoided, air leakage into the vertical flame path in the measuring process can be effectively prevented, and the accuracy of a sampling result is guaranteed.
The sampling connector 3 is a hollow tube structure made of quartz glass, the outer diameter of the sampling connector is 6-8 mm, the inner diameter of the sampling connector is 4-6 mm, and the length of the sampling connector is 45-55 mm. The sampling interface 3 can be externally connected with a silicone tube and is connected to a portable gas analyzer, waste gas in the vertical flame path is obtained on line for analysis, the sampling is accurate, the analysis result data is reliable, and the sampling interface has credible guiding significance for the ignition work.
[ examples ] A method for producing a compound
the base plate 1 is circular with the diameter of 130mm and the thickness of 6mm, the inner diameter of the sampling tube 2 is 12mm, the wall thickness of 2mm, the length L of 2800mm, the length of a sampling interface is 50mm, the outer diameter of 6mm and the wall thickness of 1 mm;
The sampling tube 2, the base plate 1 and the sampling interface 3 are all made of quartz glass. The quartz glass has stable material quality and high temperature resistance, can not react with any component in the waste gas at the high temperature of the vertical flame path, and can ensure the accuracy of the sampling result.
when the operation, open and see the hole seat apron after, put into the coke oven with the sampling tube 2 of this utility model device and found the flame path, make bedplate 1 hug closely and see the hole seat of burning, ensure seamless not revealing, the external silicone tube of sampling interface 3 is connected to portable gas analysis appearance, can reach on line and found the flame path in waste gas carry out the sampling analysis, guide the work of adjusting a fire.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (1)
1. A coke oven vertical flue waste gas sampling device comprises a sampling tube, a seat plate and a sampling interface, and is characterized in that the sampling tube is a hollow tube, and one end of the sampling tube is welded with the sampling interface; the base plate is welded on the sampling tube at a position which is L away from the other end of the sampling tube;
The sampling tube is made of quartz glass, the inner diameter of the sampling tube is 10-12 mm, and the length L of the sampling tube is required to extend into the vertical flue and exceed the lower edge of the crossing hole by 100-150 mm;
the base plate is of a circular plate-shaped structure made of quartz glass, the thickness of the base plate is 5-8 mm, the size of the outer diameter of the base plate is matched with that of the observation hole cover, and the inner diameter of the base plate is matched with that of the sampling tube and is connected with the sampling tube in a welding mode;
The sampling interface is a hollow tube structure made of quartz glass, the outer diameter of the sampling interface is 6-8 mm, the inner diameter of the sampling interface is 4-6 mm, and the length of the sampling interface is 45-55 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822154159.5U CN209783995U (en) | 2018-12-21 | 2018-12-21 | coke oven vertical flue waste gas sampling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822154159.5U CN209783995U (en) | 2018-12-21 | 2018-12-21 | coke oven vertical flue waste gas sampling device |
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| Publication Number | Publication Date |
|---|---|
| CN209783995U true CN209783995U (en) | 2019-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822154159.5U Active CN209783995U (en) | 2018-12-21 | 2018-12-21 | coke oven vertical flue waste gas sampling device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114563236A (en) * | 2022-03-07 | 2022-05-31 | 马鞍山钢铁股份有限公司 | Method for rapidly measuring air coefficient of coke oven flue gas |
-
2018
- 2018-12-21 CN CN201822154159.5U patent/CN209783995U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114563236A (en) * | 2022-03-07 | 2022-05-31 | 马鞍山钢铁股份有限公司 | Method for rapidly measuring air coefficient of coke oven flue gas |
| CN114563236B (en) * | 2022-03-07 | 2023-12-22 | 马鞍山钢铁股份有限公司 | Rapid determination method for air coefficient of coke oven flue gas |
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